  main{
      padding: 10px;
  }
  main .choose div{
      width: 40%;
      height: 2.186667rem;
      border: 1px solid #cccccc;
      margin-right: 8px;
      float: left;
      text-align: center;
      line-height: 2.186667rem;
  }
  .clear{
      clear: both;
  }
